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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4979489
Kind Code:
A
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Application Number:
JP12130872A
Publication Date:
July 31, 1974
Filing Date:
December 04, 1972
Export Citation:
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International Classes:
H01L33/10; H01L33/20; H01L33/30; H01L33/38; H01L33/40



 
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